Wrench



March 30,1926. 'i 1,579,152

W. D. SEAL WRENCH Filed August 2l, 1923 2 Sheets-Sheet l :e d u lMarch so, 192e. 1,579,152 W. D. SEAL WRENCH Filed August 2l, 1923 2 Sheets-Sheet 2 42' 4E Eq. El u F16 7 sin Patented Mar. 3G, 1926.

unirse; srarss PATENT orFic-E.

WILLIAM D. SEAL, OF DES ARC, MISSOURI.

WRENCH.

Application led August 2.1, 1923. Serial No. 658,575.

To all whom t may concern.'

Be it known that I, VILLIAM D. SEAL, a

citizenof the United States, residing at actuating member of the tool whereby the head can be turned by the oscillation of the actuating member, and whereby Jdie head can be removed so that several heads can be used interchangeably with the same actuating member.

Another object is thev provision of a novel chuck head which isadjustable for different sie/.es of nuts or other objects.

It is also an object of the invention to provide such a device comprising a novel assemblage of the component elements, wheieby the device is practical and eiTicient in use. l

lVith the foregoing and other objects in view, which will be apparent as the description proceeds,.the invention resides in the construction and arrangement of parts as hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed, without devvparting from the spirit ot the invention.

y The invention is illustrated in the accompanying drawings, wherein- Figure 1 is a side elevation of the 'implement including the chuck head;

Fig. 2 is an enlarged median section of the chuck head and connection between said head and actuating member, portions being shown in elevation; o Y

Fig. Sis a fragmentary section of the i chuck head showing the aws in another position;

Fig. e: is a section on the line -f-i of Fig.

,Fig 5 is an fend view of the chuck head; y Fig. 6 is an elevation showing the use of a brush head with the actuating member; and A Y Fig. is a mediany section of said brush. head with the bristles retracted,

yThe implement uses a crank or brace 10 as an actuating member, having the knob or handle 11 swiveled on one end thereof, and having the actuating handle 12 on the crank proper for conveniently rotating the crank. The crank is provided at its other end with the ring 13 having the opening 14, said ring being-concentric with the axis of rota-L tion ofthe crank.

The ring 13 is adapted to receive the head,

which, as shown in Figs. 1-5, includes the tubular shell or case 15. One end portion of the'shell orniember 15 is adapted to lit rotatably in the opening 1i, for swivel connection with the crank or actuating member 10, and in order to retain .the shell 15 in connection with the crank 10, said shell or membei' 15 is provided with an annular groove 16 for receiving a retaining member 17 carried by the crank 10. Said retaining meni-v ber 1T is of arcuate form to bear against thc shell 15 within thegroove 16, and tho ring 13 has a recess 18 inwhich said meniber 1T is movable into and out of the opening 14. The member 17 has a stem 19 projecting slidably into the crank, and a coiled spring 2O surrounds said stem and is confined between the member 17 and the crank,

Vwhereby to yieldingly project said member into the opening 1-1 and groove 16, for holding the crank and head or member 15 assembled. A button or linger piece 21 is secured to the stem 19 and is slidable in a s101522 in the crank for conveniently retracting the member 17 from the opening 14C and groove 16, when it is desired to remove the shell or member 15..

A ratchet connection between the shell or member 15 and crank is also provided, whereby the head canv be rotated by the oscillation of the crank, as well as by the rotation of the crank. Thus, a pawl or dog 23 is slidable in a hole Qin the ring 13, and has a stem 25 slidable through a plug 26screwed or otherwise secured in the outer end of said hole, and the stem has a linger piece or handle 27 at its outer end for convenience in retracting the pawl. A coiled spring 28 is confined between the p'awl 23 and plug 26 `for yieldingly projecting the pawl into the opening 141 and groove 16 to snap into engagement with the ratchet notches 29 provided in the shellor member 15 at the bottom ofk the grooveY 16. The shell Y15 can thus bemade to rotate with the crank, and when` it is not possible to' r0- Cil ate the crank, it can be oscillated, whereby he ratchet connection between the crank and shell l will turn the shell with an intermittent motion, as will be apparent. The linger piece 2T enables the pawl 225 to be retracted, in order that the pawl can be turned around or reversed, for rotating the shell l5 in either direction, and the pawl 28 is also retracted, when the retaining men'r ber 1T is retracted, for the removal or insertion ot a head, it being understood that diner-ent heads can be used interchangeably with the crank, providing the heads are ot a size to lit in the opening ll and have the groove 16 and notches 29.

Yln Figs. 1J) there is illustrated a chuck head to enable the tool to be used as a wrench for turning nuts, bolts and other objects ot different sizes. Sued chuck head includes a block or member slidable within the shell l5, and arms 31 pivoted, as at 3Q, to the block 8O and provided with jaws at the open or outer end ot the shell l5. As shown, there are three arms 3l, although there may be ditlerent numbers ol" said arms. The jaws 33 have the angular 'faces or recesses 3l confronting one another for engaging the angles oic nuts, bolt heads, and the like, although the faces ot the jaws may be ot different formations. The backs 35 of the jaws are beveled or disposed obliquely with reference to the jaws and arms, to bear against the enlarged tapered end portion 3G ot the shell, so that the jaws are forced toward one another when they are projected from the shell,and are permitted to separate when retracted into the shell. This enables the jaws to be adjusted tor nuts, bolt heads, and other objects of dil'lerent sizes, within the limits of adjustment. In order to assist in the opening and closing ot the jaws when they are slid inwardly and outwardly, leaded screws or studs 3T are engaged with the arms 31 or jaws 315 thereo't and work in slots 3S in the portion 3G ot the shell, thereby keeping the backs 35 ot' the jaws against said portion 3G.

The block 30 is adjusted longitudinally, to adjust the jaws, by means of a screw 39 swiveled through the inner end portion of the shell l5, and, as shown, the screw has an annular groove 470 receiving a set-screw Lll carried by the shell l5. The sere-w 39 is screwed into the block 30, and said screw has a thumb-piece or knob l2 at its inner end for convenience in rotating the screw, whereby to move the block 30V longitudinally in the shell. Thus, by turning the knob or linger-piece M the block 30 can be slid ""'7 in one direction or the other tor moving the aws inwardly or outwardly tor opening or closing the jaws. Such jaws can thus be conveniently adjusted or nuts, bolt heads, and other objects of different sizes. .Figs 6 and T show a brush head to be used with the crank or actuating member for cleaning out carbon from internal "frmbustion engines, or for cleaning out other cavities or chambers. The brush head includes a tubular shell 171, one end portion of which is ot a size to lit in the opening ll ot' the crank, and provided with the groove 1b and notches 2f) tor the engagement of the retaining member 1T and pawl Q3, respectively. fr block or member BO is lidable in the shell 15', and actuated by the screw 239 swiveled through the inner portion or the shell and provided with the knob or linger-piece sii, at its inner end. lr'ire or other resilient bristles 533 are secured to the block or member 30 in any suitable man ner, to be retracted into the shell 15, as

" The bristles are so bent, that secu in Fig. i. when they are projected from the shell, thcv will spread apart or open out so as to enter a` chamber or cavity into which the bristles are projected.

Fig. G illustrates the brush head as used 'tor cleaning out carbon from the combustion chamber ot an internal combustion engine. The end of the shell l5 is inserted in an opening l?) in the cylinder head, from which the plug has been removed, and the bristles 33 are retracted in the shell so that the shell can be conveniently inserted. Then. the linger-piece or knob 42 is turned so as to project the bristles from the shell, and said bristles will open out or spread apart so as to come into contact with the walls of the combustion chamber throughout the extent ot said walls, and by rotating the crank l0, the bristles are rotated iii the chamber 'or brushing the carbon loose, so that it can be blown out from the con'ibustion chamber. Such brush head is especially useful tor cleaning carbon trom engines iii which the cylinder heads are not removable, and the brush head can be used tor cleaning out or brushing other cavities or chambers to which access is only had through a rcstricted hole or opening. l

lllhen the bristles are retracted into they shell, they can be conveniently inserted through or withdrawn from the hole or opening leading to the cavity or chamber.

The chuck and brush heads can thus bc used interchangeably with the crank or actu atingr member, and other heads can also be used with said crank. Chuck heads` ot diilerent kinds can be used intercliangeably for nuts, bolts, and other objects ot dilierent sizes and shapes, and the jaws can also be formed to engage screw-tlncads of' stud bolts and the like.

Having thus described the invention, what is claimed as new l. .fr tool comprising an actuating member having a circular opening therein, a head having a cylindrical portion itted rotatably and removably in said opening coaxial. with said opening, said head having an annular groove and ratchet notches between the sides of the groove, a retaining member movably mounted in said actuating member and adapted to project into said opening and fit snugly in said groove, a pawl independent of said retaining member mounted movably in the actuating member to project into said opening and engage said ratchet notches, and spring means for moving said retaining member and pawl into said opening to engage in said groove and notches respectively, said retaining member and pawl being adapted to be retracted from said opening to permit the head to be withdrawn from the opening.

another when said member is moved in one direction, the jaws having members working in said slots for swinging the jaws away from one another when the first-named member is moved in the opposite direction, and means for moving said iirst-named member longitudinally Within said shell. n

In testimony whereotl I have signed my name to this specification.

VILLIAM D. SEAL. 

